package com.itheima.web.servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@WebServlet("/selectUserServlet")
public class Demo02SelectUserServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // 模拟注册,假设用户名为zhangsan表示用户存在
        String username = request.getParameter("username");

        boolean result = "zhangsan".equals(username);

        // 设置响应类型和编码，注：text/plain为纯文本类型
        response.setContentType("text/plain;charset=utf-8");
        response.getWriter().write("" + result); // true -> "true"
    }
}
